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Summary: Ctors | Methods | Inherited Methods

# FloatEvaluator

`public class FloatEvaluator`
`extends Object` `implements TypeEvaluator<Number>`

java.lang.Object
↳ | android.animation.FloatEvaluator

This evaluator can be used to perform type interpolation between `float` values.

## Summary

### Public constructors
`FloatEvaluator()`

### Public methods
`Float` | `evaluate(float fraction, Number startValue, Number endValue)` This function returns the result of linearly interpolating the start and end values, with `fraction` representing the proportion between the start and end values.

### Inherited methods
From class `java.lang.Object`
`Object` | `clone()` Creates and returns a copy of this object.
`boolean` | `equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>` | `getClass()` Returns the runtime class of this `Object`.
`int` | `hashCode()` Returns a hash code value for the object.
`final void` | `notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void` | `notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String` | `toString()` Returns a string representation of the object.
`final void` | `wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void` | `wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void` | `wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
From interface `android.animation.TypeEvaluator`
`abstract Number` | `evaluate(float fraction, Number startValue, Number endValue)` This function returns the result of linearly interpolating the start and end values, with `fraction` representing the proportion between the start and end values.

## Public constructors

### FloatEvaluator

    public FloatEvaluator ()

## Public methods

### evaluate

    public Float evaluate (float fraction,
                    Number startValue,
                    Number endValue)

This function returns the result of linearly interpolating the start and end values, with `fraction` representing the proportion between the start and end values. The calculation is a simple parametric calculation: `result = x0 + t * (x1 - x0)`, where `x0` is `startValue`, `x1` is `endValue`, and `t` is `fraction`.

Parameters
`fraction` | `float`: The fraction from the starting to the ending values
`startValue` | `Number`: The start value; should be of type `float` or `Float`
`endValue` | `Number`: The end value; should be of type `float` or `Float`

Returns
`Float` | A linear interpolation between the start and end values, given the `fraction` parameter.

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